Codename: SURGEON speculated in his report Historical/Psychological Analysis of Cole, Preston J. that Cole actually survived the Battle of Psi Serpentis. SURGEON's theory, supported by UNSC AIs, was that the ship lost at Psi Serpentis to the Viperidae micronova was actually UNSC Io, an irreparably damaged cruiser. SURGEON postulated that Cole used Io as a decoy while Everest escaped. In any case, neither Everest nor Cole were ever seen again.[7]